My Cell Game

At this moment, the macrophage, like a scout, captured a large group of invaders, analyzed the information of the invaders from their bodies, and collected samples.

Finally, after ten minutes, all the source cells were devoured.

The macrophage is satisfied with expelling a lot of waste with vesicles. Near its nucleus, there is a small vesicle floating, which is filled with the characteristic proteins of the source cell.

After all the players died, the live video source was lost in the live broadcast room. The live video was frozen at the moment when the last player died, and the screen went dark.

The players watching the excitement chatted for a while in the live broadcast room with a black screen, and then dispersed. Everything that happened just now, in the eyes of the players, was just a thrilling adventure, and the heat quickly dissipated.

"E goes and never returns" and others are also revived at the birth point, and a large group of pioneering players gathered together, reminiscing about what happened just now.

Some players are also very worried, for fear that macrophages will also attack ordinary players.

However, this worry was quickly dispelled. Occasionally, players encountered macrophages in the wild, and the faction symbols on the top of the macrophages also marked the "friendly" side, and no macrophages took the initiative to attack players.

The player took it for granted that the macrophage should be a rebellious white blood cell, so if you encounter it in the future, just stay away from it. It is also a good choice to form a team to reject it.

Soon, the heat of this little episode faded away. There are too many attractive novelties in the game world, and videos that attract players' attention emerge in endlessly. The incident of macrophage attack is just a small ripple in the ocean, which is insignificant.

No one realized that a large-scale crisis was coming.

The macrophage recovered from the berserk state, and with the processed source cell characteristic protein (now it should be called antigen), hurriedly swam towards the "command headquarters" of the immune defense line.

In the tissues of the human body, in addition to densely covered with tiny capillaries, there is also a ubiquitous pipeline - lymphatic vessels.

The so-called lymphatic vessels, which are similar to capillaries in appearance, are channels for cells to swim. But specific to the function, the two are very different.

Most of the "civilian" cells that swim in the capillaries are red blood cells and platelets, which are responsible for daily delivery of nutrients and maintenance of blood vessels.

But what swims in the lymphatic vessels is the army in the cells—lymphocytes!

If capillaries are regarded as civil highways, then lymphatic vessels are military special lines.

A large number of lymphocytes live in the lymphatic vessels, gather through the movement of the lymphatic vessels, and constitute the most critical third line of defense in the human body!

After judging, the macrophages believed that the intruders this time were not trivial, the number was unknown, and they would kill red blood cells, which was extremely harmful to cell safety. Relying on phagocytes alone was no longer enough to deal with the threat.

Therefore, the destination of macrophages is a certain lymph node in the lymphatic vessel. It decides to go to the lymph nodes, asking for a third line of defense.

In the human body, there are three main lines of defense:

The first is the skin and mucous membranes, which are the outer walls of the human body;

The second is the bactericidal substances and phagocytic cells in the blood, which are the patrolling police in the cellular world.

Macrophages are a type of phagocytes and belong to the second line of defense.

Under normal circumstances, after encountering an intruder, macrophages will chase and kill the intruder as much as possible, and will not directly activate the third line of defense.

Just like when the "sensing object" was hunting red blood cells at the beginning, the macrophages only issued a wanted order for the "sensing object" in a small area, and only a dozen surrounding phagocytes were chasing and killing the source cells.

For the first time, the macrophage judged the "sensing object" as [a mutated ordinary cell], similar to thieves and robbers in the human world, and it is enough to hand it over to the patrol police.

However, in the process of chasing and killing "sense objects", macrophages saw more source cells. These source cells are organized, unknown in number, and extremely threatening.

Therefore, the macrophage changes its judgment and judges the source cell as the [foreign invasion army of the cell world].

In this way, relying on patrol police alone is not enough to counteract the invading army. Macrophages need to ask to open the regular army in the third line of defense.

To request the regular army to take action, evidence of the invading army is required.

The characteristic protein of the source cell extracted by the macrophage is the evidence of the invasion of the source cell. According to the popular saying, this thing is called an antigen.

The stronger the evidence, the more likely regulars in the third line will agree to fight and the easier it will be to kill the invaders.

Once the third line of defense is activated, it will be the beginning of the all-out war. Unless all the invaders are killed, they will die forever!

Moreover, even if all the intruders are killed, the army in the third line of defense will still send special sentries to guard against the reappearance of similar intruders.

The army in the third line of defense is mainly lymphocytes.

They live in immune organs such as lymph nodes, tonsils, and bone marrow, and are natural soldiers.

The lymph nodes where they live are one of the most important immune organs in the body and spread all over the body.

Lymph nodes are the front-line headquarters of the third line of defense in the immune defense line, and it is also the place where macrophages can most easily contact lymphocytes, and the two sides often exchange information with each other here.

After swimming for almost half an hour, macrophages came to the nearest lymph node entrance.

As soon as it entered the entrance, a group of lymphocytes hurriedly brushed past it. The macrophage hurriedly stopped one of the cells and said, "I need your help urgently."

The blocked lymphocytes were in a hurry, and seemed to be in a hurry: "Why are you stopping me? I have an urgent task!"

"Aren't you a T cell? I have an antigen here that you need to deal with." The macrophage said that it was about to exocytose the antigen.

"Please take care of me. I am an effector T cell. I have already received specific tasks and I will no longer accept additional tasks. Go find undifferentiated T cells and don't delay my work!" After finishing speaking, this group of T cells Hastily left.

Seeing that the other party did not accept the task, macrophages had to go deep into the lymph nodes to find other T cells.

Along the way, urgently mobilized lymphocytes can be seen everywhere, and various antibodies are produced and urgently transported to the front line. A busy scene throughout the lymph nodes.

Finally, after searching for a while, the macrophage finally saw the T cells that had not accepted the task, and it immediately approached and stopped one of the T cells.

"What do you want from me?" T cells asked.

"Yes, sir." Macrophage said, "I have found a dangerous invading army, and I request a full-scale war against them!"